Last updated: February 24, 2025
In April, Key Biscayne welcomes spring with warm temperatures and a balmy atmosphere. The maximum temperature can reach a pleasant 32°C (90°F), while the average hovers around a comfortable 25°C (77°F). Early risers can expect cooler mornings, with minimums dipping to 15°C (59°F). This month also sees an average precipitation of 63 mm (2.5 in), spread across 11 days, contributing to a humidity level of 73%. Visitors and locals alike can enjoy the vibrant flora and invigorating beach experiences, although they should be prepared for occasional rain showers.
In April, Key Biscayne begins to truly warm up, signaling the transition into its summer months. With a minimum temperature of 15°C (59°F) and an average soaring to 25°C (77°F), visitors can expect pleasant, inviting days. The maximum temperature reaches up to 32°C (90°F), providing a perfect backdrop for outdoor activities and beach fun. Compared to the preceding months, April showcases a noticeable increase in warmth, particularly as it bridges from the milder temperatures of March. This rise in warmth not only enhances the allure of the pristine beaches but also heralds more vibrant flora and outdoor festivities, making it an ideal time to explore everything this tropical paradise has to offer.
In April, Key Biscayne experiences a notable increase in precipitation, with 63 mm (2.5 in) recorded over 11 days. This uptick marks a significant rise compared to the preceding months, such as March’s 30 mm (1.2 in), suggesting the onset of a wetter season. As the island transitions from spring to summer, April sets the stage for even more substantial rainfall in the following months, particularly May and June, which see dramatic increases in both total precipitation and the number of rainy days. This pattern indicates that residents and visitors should be prepared for the lush, verdant landscape that follows the April showers, as it heralds the vibrant summer months ahead.
In April, the humidity in Key Biscayne, United States, averages around 73%, marking a continued decline from the wetter winter months. This represents a shift from the 81% in January, gradually dropping to 79% in February, and 76% in March. As the spring season unfolds, the lower humidity levels signal a transition towards the drier months ahead, with May following closely at 71%. This pattern not only provides a refreshing respite from the high humidity of winter but also sets the stage for the warmer summer months that typically see a gradual increase. Overall, April signifies a turning point in Key Biscayne's climate, paving the way for more comfortable, inviting days ahead.
In April, Key Biscayne experiences the peak of its UV intensity with an impressive UV Index of 12, categorizing it as extreme. This drastic increase from the earlier months, where January began at a UV Index of 6 and escalated to 10 in March, highlights a significant trend toward heightened sun exposure. With a burn time of only 10 minutes, residents and visitors must be especially vigilant, taking precautions to safeguard their skin during this intense period. This pattern continues into May and June, where the UV Index remains at its highest point, emphasizing the importance of sun safety as summer approaches. For detailed information on UV variations throughout the year, explore this helpful resource: Key Biscayne UV Index.
UV Risk Categories
April is a radiant gem in Key Biscayne, boasting an impressive 336 hours of sunshine that warms both the heart and the shoreline. This month marks a delightful transition, building on the vibrant light of March, where the sun shone for 327 hours. As spring unfolds, the sunshine peaks, paving the way for upcoming lush summer months, like July and August, which feature 344 and 340 hours respectively. This trend showcases Key Biscayne as a sun-drenched paradise during the spring, with April serving as a stunning reminder of nature's embrace, enticing visitors and locals alike to bask in its glow.
In April, Key Biscayne showcases a 54% chance of sunny weather, making it a delightful month to enjoy the outdoors. This statistic reflects a slight dip from March's robust 55%, yet remains significantly higher than the dismal probabilities of the summer months, where the chance of sunshine plummets to a mere 15-24%. As spring transitions into summer, it's noteworthy that April presents one of the better opportunities for sun-soaked days, particularly when compared to the wetter months that follow. With the blend of warm temperatures and a relatively favorable forecast, April stands out as an ideal time for beachgoers and sun seekers alike to indulge in the beauty of Key Biscayne.
In Key Biscayne, April brings a delightful 12 hours of daylight, maintaining the same duration as March. This consistency marks a welcome transition into spring, where daylight gradually increases as the months progress. Following April, May ushers in even longer days with 13 hours, signaling the approach of summer. The data reveals a clear upward trend from January's modest 10 hours to the peak summer months of June through July, where daylight remains plentiful. As the year progresses, daylight begins to taper off again in August, highlighting the natural ebb and flow of sunlight throughout the seasons, culminating in shorter days as winter approaches in the later months.
In April, Key Biscayne enjoys a delightful average wind speed of 4.4 m/s (10 mph), positioning it as a refreshing time for outdoor activities. This gentle breeze is slightly lower than the winds of the preceding months of January through March, which recorded stable speeds of 4.9 m/s (11 mph), yet it remains one of the more favorable months for breezy island escapades. As the seasons transition towards summer, a gradual decline emerges, culminating in the calmest winds of July, where speeds drop to 3.1 m/s (7 mph). Notably, while April's breezes are gentle, they still serve to cool the tropical heats, making it an inviting month for both locals and visitors to relish in the beauty of Key Biscayne.
The weather in Key Biscayne changes throughout the year, offering a unique experience in each season. Below is a month-by-month comparison of April's weather with other months, highlighting differences in temperature, precipitation, and other key factors. Click on each section to discover seasonal trends in Key Biscayne and find detailed weather information for every month.
April weather is generally warmer than January, with temperatures ranging from a minimum of 15°C (59°F) to a maximum of 32°C (90°F), averaging at 25°C (77°F). In contrast, January sees cooler temperatures, with a low of 7°C (44°F) and a high of 28°C (83°F), resulting in an average of 21°C (70°F). While April experiences more precipitation at 63 mm (2.5 in) over 11 days, January has less rainfall, totaling 34 mm (1.3 in) across just 6 days. Additionally, humidity levels are slightly higher in January at 81%, compared to 73% in April. For more detailed information, check out Key Biscayne weather in January.
April tends to be warmer than February, with temperatures ranging from a minimum of 15°C (59°F) to a maximum of 32°C (90°F), while February has cooler temperatures that range from 10°C (51°F) to 28°C (83°F). In terms of precipitation, April sees slightly more rainfall at 63 mm (2.5 in) over 11 days compared to February's 50 mm (2.0 in) over 9 days. Although April has a slightly lower humidity rate at 73%, it still maintains a warm and pleasant overall feel, making it a favorable time for outdoor activities. For more specific details about February's weather, you can check Key Biscayne weather in February.
In comparing the weather for March and April, one can see a notable increase in temperature during April, with minimums and maximums reaching 15°C (59°F) and 32°C (90°F) respectively, compared to March's range of 12°C (54°F) to 30°C (86°F). The average temperature in April is also higher at 25°C (77°F) versus March's 23°C (73°F). While April experiences more precipitation at 63 mm (2.5 in) over 11 days, it still has a moderate level of humidity at 73%, slightly lower than March's 76%. For more detailed insights about the weather in March, you can check Key Biscayne weather in March.
In comparing the weather between April and May, April experiences a milder temperature range with a minimum of 15°C (59°F) and an average of 25°C (77°F), while May's temperatures are slightly higher, starting at a minimum of 19°C (66°F) and averaging 26°C (79°F). Although both months exhibit relatively high humidity, May tends to have more rainfall, with 161 mm (6.3 in) over 18 days compared to April's 63 mm (2.5 in) over 11 days. This increase in precipitation and the warmer nights in May result in a more humid climate overall. For detailed information, you can refer to Key Biscayne weather in May.
April and June in Key Biscayne show distinct weather patterns, with April generally being warmer and more dry. In April, temperatures range from a minimum of 15°C (59°F) to a maximum of 32°C (90°F), with an average of 25°C (77°F) and total precipitation of 63 mm (2.5 in) occurring over 11 days. In contrast, June brings higher minimum temperatures at 24°C (75°F) and a slightly lower average at 28°C (82°F), while still peaking at 32°C (90°F). However, June is characterized by significantly increased rainfall, with 172 mm (6.8 in) spread over 22 days, leading to slightly lower humidity at 69%. For more detailed weather information, you can check Key Biscayne weather in June.
April and July present distinct weather patterns, showcasing a shift in temperature and precipitation. In April, the average temperature ranges from a comfortable 25°C (77°F) to a maximum of 32°C (90°F), accompanied by a moderate humidity level of 73% and 63 mm (2.5 in) of rainfall over 11 days. Conversely, July experiences higher minimum temperatures starting at 24°C (76°F) and an average of 28°C (83°F), with peak temperatures reaching 33°C (92°F). However, July is significantly wetter, receiving 173 mm (6.8 in) of precipitation across 26 days, despite a slightly lower humidity level of 70%. For more details on July weather, check out Key Biscayne weather in July.
April and August exhibit distinct weather patterns, with April generally being milder and less humid. In April, temperatures range from a minimum of 15°C (59°F) to a maximum of 32°C (90°F), with an average of 25°C (77°F) and significantly lower precipitation at 63 mm (2.5 in) over 11 days. Conversely, August experiences warmer temperatures, where the minimum is 25°C (76°F) and the average settles around 28°C (83°F), while the highest temperature can still reach 32°C (90°F). However, August sees a substantial increase in rainfall, totaling 181 mm (7.1 in) over 25 days, contributing to a somewhat oppressive humidity level of 72%. For more details on the specific climate characteristics during this month, you can visit Key Biscayne weather in August.
April and September exhibit distinct weather patterns, making each month unique in its own right. In April, temperatures range from a minimum of 15°C (59°F) to a maximum of 32°C (90°F), with an average of 25°C (77°F). The month sees relatively moderate rainfall of 63 mm (2.5 in) over 11 days, and humidity levels hover around 73%. In contrast, September brings a warmer atmosphere with minimum temperatures of 24°C (75°F) and average highs reaching 33°C (91°F). However, it doesn’t just get warmer; precipitation increases significantly to 203 mm (8.0 in) over 22 days, coupled with a slight rise in humidity to 76%. For a detailed look at September weather, check out Key Biscayne weather in September.
April and October in Key Biscayne exhibit distinct weather patterns. In April, temperatures range from a minimum of 15°C (59°F) to a maximum of 32°C (90°F), with an average of 25°C (77°F). The month sees around 63 mm (2.5 in) of precipitation over 11 days, accompanied by a humidity level of 73%. In contrast, October has a slightly cooler average temperature of 27°C (81°F), with a maximum of 30°C (87°F) and the same minimum of 15°C (59°F). However, this month experiences significantly higher precipitation, totaling 157 mm (6.2 in) over 22 days, with humidity rising to 79%. For more detailed information, check Key Biscayne weather in October.
April and November in Key Biscayne present notably similar temperature ranges, with April enjoying slightly warmer conditions, having a minimum of 15°C (59°F) and an average of 25°C (77°F), compared to November's minimum of 12°C (54°F) and average of 24°C (76°F). While April tends to be sunnier with an average maximum of 32°C (90°F) and less precipitation at 63 mm (2.5 in) over 11 days, November sees a slight increase in rainfall, totaling 93 mm (3.7 in) across 14 days. Additionally, November is characterized by higher humidity levels at 80% compared to April's 73%. For a more detailed look at the weather in November, you can visit Key Biscayne weather in November.
April and December offer distinct weather experiences, with April typically being warmer and more humid. In April, temperatures range from a minimum of 15°C (59°F) to a maximum of 32°C (90°F), with an average of 25°C (77°F). The month sees about 63 mm (2.5 in) of precipitation over 11 days, giving it a humidity level of 73%. In contrast, December features cooler temperatures, with a minimum of 11°C (51°F) and a maximum of 29°C (84°F), averaging at 22°C (72°F). Precipitation drops to 41 mm (1.6 in) on 9 days, accompanied by a slightly higher humidity of 81%. For further details, you can explore Key Biscayne weather in December.
As April unfolds in Key Biscayne, it brings a delightful shift in weather that sets the stage for the approaching summer. With warmer temperatures averaging around 25°C (77°F) and reaching peaks of 32°C (90°F), the days feel more inviting compared to the cooler months of winter. However, this month also sees increased humidity at 73% and a slight uptick in precipitation, with rain making its presence felt on about 11 days. This blend of warmth and occasional showers creates the perfect backdrop for outdoor activities, making it a popular time for visitors and locals alike to enjoy the stunning coastal scenery. For a deeper understanding of what to expect throughout the year, check out the detailed insights on Key Biscayne Climate.